<template>
    <div>
        <div style="position: relative; width: 100%">
            <el-select
                :value="value"
                multiple
                filterable
                remote
                :remote-method="onSearch"
                size="small"
                style="width: 100%"
                @change="onSelect"
                @remove-tag="onRemove"
                :disabled="disabled"
            >
                <el-option
                    v-for="(item, index) in items"
                    :key="index"
                    :label="item[deMajorField]"
                    :value="item[deKeyField]"
                    :background ="item['color']"
                    color="var(--view-font-color-bright)"
                ></el-option>
            </el-select>
            <span style="position: absolute; right: 5px; color: #c0c4cc; top: 0; font-size: 13px">
                <i class="el-icon-search" @click="openView"></i>
            </span>
        </div>
    </div>
</template>
<script lang="ts">
import { Component, Vue, Prop, Watch } from 'vue-property-decorator';
import { Subject } from 'rxjs';
import { AppModal, Util } from '@/utils';

@Component({})
export default class AppMpicker extends Vue {
    /**
     * 传入url
     */
    @Prop() url?: any;

    /**
     * 表单数据
     */
    @Prop() activeData?: any;

    /**
     * 是否禁用
     */
    @Prop() disabled?: boolean;

    /**
     * 编辑器参数
     */
    @Prop() editorParams?: any;

    /**
     * 表单项值
     */
    @Prop() curvalue?: any;

    /**
     * 值项
     */
    @Prop() valueitem?: any;

    /**
     * 局部上下文导航参数
     *
     * @type {any}
     * @memberof AppMpicker
     */
    @Prop() public localContext!: any;

    /**
     * 局部导航参数
     *
     * @type {any}
     * @memberof AppMpicker
     */
    @Prop() public localParam!: any;

    /**
     * 表单项名称
     */
    @Prop() name: any;

    /**
     * 视图上下文
     *
     * @type {*}
     * @memberof AppMpicker
     */
    @Prop() public context!: any;

    /**
     * 视图参数
     *
     * @type {*}
     * @memberof AppMpicker
     */
    @Prop() public viewparams!: any;

    /**
     * AC参数
     *
     * @type {*}
     * @memberof AppMpicker
     */
    @Prop({ default: () => {} }) public acParams?: any;

    /**
     * 编辑器额外填充参数
     *
     * @type {string}
     * @memberof AppMpicker
     */
    @Prop() public extraFillParams?: any;

    /**
     * 应用实体主信息属性名称
     *
     * @type {string}
     * @memberof AppMpicker
     */
    @Prop({ default: 'srfmajortext' }) public deMajorField!: string;

    /**
     * 应用实体主键属性名称
     *
     * @type {string}
     * @memberof AppMpicker
     */
    @Prop({ default: 'srfkey' }) public deKeyField!: string;

    /**
     * 表单服务
     *
     * @type {*}
     * @memberof AppMpicker
     */
    @Prop() public service?: any;

    /**
     * 打开对应的选择视图
     */
    @Prop() pickupView?: any;

    /**
     * 当前表单项绑定值key的集合
     */
    public value: any = [];

    /**
     * 所有操作过的下拉选选项
     */
    public items: Array<any> = [];

    /**
     * 选中项key-value键值对
     *
     */
    public selectItems: Array<any> = [];

    /**
     * 监听curvalue值
     * @param newVal
     * @param val
     */
    @Watch('curvalue', { immediate: true, deep: true })
    oncurvalueChange(newVal: any, val: any) {
        this.value = [];
        this.selectItems = [];
        if (newVal) {
            try {
                this.selectItems = this.parseValue(JSON.parse(newVal));
                this.selectItems.forEach((item: any) => {
                    this.value.push(item[this.deKeyField]);
                    let index = this.items.findIndex((i) => Object.is(i[this.deKeyField], item[this.deKeyField]));
                    if (index < 0) {
                        let singleParam:any = {
                            [this.deMajorField]: item[this.deMajorField],
                            [this.deKeyField]: item[this.deKeyField],
                        };
                        if(item['color'] && this.isExistParam('color')){
                            Object.assign(singleParam,{'color':item['color']});
                        }
                        this.items.push(singleParam);
                    }
                });
            } catch (error) {
                if (error.name === 'SyntaxError') {
                    let srfkeys: any = newVal.split(',');
                    let srfmajortexts: any = null;
                    if (this.valueitem && this.activeData[this.valueitem]) {
                        srfmajortexts = this.activeData[this.valueitem].split(',');
                    }
                    if (
                        srfkeys.length &&
                        srfkeys.length > 0 &&
                        srfmajortexts.length &&
                        srfmajortexts.length > 0 &&
                        srfkeys.length == srfmajortexts.length
                    ) {
                        srfkeys.forEach((id: any, index: number) => {
                            this.value.push(id);
                            this.selectItems.push({ [this.deKeyField]: id, [this.deMajorField]: srfmajortexts[index] });
                            let _index = this.items.findIndex((i) => Object.is(i[this.deKeyField], id));
                            if (_index < 0) {
                                this.items.push({ [this.deKeyField]: id, [this.deMajorField]: srfmajortexts[index] });
                            }
                        });
                    }
                }
            }
        }
        this.$forceUpdate();
    }

    /**
     * 远程执行搜索
     *
     * @param {*} query
     * @memberof AppMpicker
     */
    public onSearch(query: any) {
        // 公共参数处理
        let data: any = {};
        const bcancel: boolean = this.handlePublicParams(data);
        if (!bcancel) {
            return;
        }
        // 参数处理
        let _context = data.context;
        let _param = data.param;
        Object.assign(_param, { query: query });
        if (this.activeData) {
            Object.assign(_param, { srfreferdata: this.activeData });
        }
        // 错误信息国际化
        let error: string = this.$t('components.appMpicker.error') as any;
        let miss: string = this.$t('components.appMpicker.miss') as any;
        let requestException: string = this.$t('components.appMpicker.requestException') as any;
        if (!this.service) {
            this.$Notice.error({ title: error, desc: miss + 'service' });
        } else if (!this.acParams.serviceName) {
            this.$Notice.error({ title: error, desc: miss + 'serviceName' });
        } else if (!this.acParams.interfaceName) {
            this.$Notice.error({ title: error, desc: miss + 'interfaceName' });
        } else {
            this.service
                .getItems(this.acParams.serviceName, this.acParams.interfaceName, _context, _param)
                .then((response: any) => {
                    if (!response) {
                        this.$Notice.error({ title: error, desc: requestException });
                    } else {
                        let tempData:any = [...response];
                        if(this.isExistParam('color') && tempData && tempData.length >0){
                            tempData.forEach((element:any) => {
                                this.fillExtraValue(element,element);
                            });
                        }
                        this.items = Util.deepCopy(tempData);
                    }
                })
                .catch((error: any) => {
                    console.log(error);
                });
        }
    }

    /**
     * 下拉选中回调
     *
     * @param {*} selects
     * @memberof AppMpicker
     */
    public onSelect(selects: any) {
        const val: Array<any> = [];
        if (selects.length > 0) {
            selects.forEach((select: any) => {
                let index = this.items.findIndex((item) => Object.is(item[this.deKeyField], select));
                if (index >= 0) {
                    const item = this.items[index];
                    const params = {
                        [this.deKeyField]: item[this.deKeyField],
                        [this.deMajorField]: item[this.deMajorField],
                    };
                    this.fillExtraValue(params, item);
                    val.push(params);
                } else {
                    index = this.selectItems.findIndex((item: any) => Object.is(item[this.deKeyField], select));
                    if (index >= 0) {
                        let item = this.selectItems[index];
                        val.push(item);
                    }
                }
            });
            const value = val.length > 0 ? JSON.stringify(this.formatValue(val)) : '';
            this.$emit('formitemvaluechange', { name: this.name, value: value });
        }
    }

    /**
     * 移除标签回调
     *
     * @param {*} tag
     * @memberof AppMpicker
     */
    public onRemove(tag: any) {
        let index = this.selectItems.findIndex((item: any) => Object.is(item[this.deKeyField], tag));
        if (index >= 0) {
            this.selectItems.splice(index, 1);
            let value = this.selectItems.length > 0 ? JSON.stringify(this.formatValue(this.selectItems)) : '';
            this.$emit('formitemvaluechange', { name: this.name, value: value });
        }
    }

    /**
     * 公共参数处理
     *
     * @param {*} arg
     * @returns
     * @memberof AppMpicker
     */
    public handlePublicParams(arg: any): boolean {
        if (!this.activeData) {
            this.$Notice.error({
                title: this.$t('components.AppMpicker.error') as any,
                desc: this.$t('components.AppMpicker.formdataException') as any,
            });
            return false;
        }
        // 合并表单参数
        arg.param = this.viewparams ? JSON.parse(JSON.stringify(this.viewparams)) : {};
        arg.context = this.context ? JSON.parse(JSON.stringify(this.context)) : {};
        // 附加参数处理
        if (this.localContext && Object.keys(this.localContext).length > 0) {
            let _context = this.$util.computedNavData(this.activeData, arg.context, arg.param, this.localContext);
            Object.assign(arg.context, _context);
        }
        if (this.localParam && Object.keys(this.localParam).length > 0) {
            let _param = this.$util.computedNavData(this.activeData, arg.param, arg.param, this.localParam);
            Object.assign(arg.param, _param);
        }
        return true;
    }


    /**
     * 打开视图
     *
     * @returns
     * @memberof AppMpicker
     */
    public openView() {
        if (this.disabled) {
            return;
        }
        if (this.pickupView && Object.keys(this.pickupView).length > 0) {
            // 参数处理
            const view = { ...this.pickupView };
            // 公共参数处理
            let data: any = {};
            const bcancel: boolean = this.handlePublicParams(data);
            if (!bcancel) {
                return;
            }
            // 参数处理
            let _context = data.context;
            let _viewparams = data.param;
            let _selectItems = JSON.parse(JSON.stringify(this.selectItems));
            if (!Object.is(this.deKeyField, 'srfkey')) {
                _selectItems.forEach((item: any, index: number) => {
                    _selectItems[index].srfkey = item[this.deKeyField];
                });
            }
            _context = Object.assign(_context, { srfparentdata: { srfparentkey: this.activeData[this.deKeyField] } });
            _viewparams = Object.assign(_viewparams, { selectedData: [..._selectItems] });
            let formdata = this.activeData;
            const modal: Subject<any> = this.$appmodal.openModal(view, _context, _viewparams);
            modal.subscribe((result: any) => {
                if (!result || !Object.is(result.ret, 'OK')) {
                    return;
                }
                let selects: Array<any> = [];
                if (result.datas && Array.isArray(result.datas)) {
                    result.datas.forEach((select: any) => {
                        const params = {
                            [this.deMajorField]: select[this.deMajorField],
                            [this.deKeyField]: select[this.deKeyField],
                        };
                        this.fillExtraValue(params, select);
                        selects.push(params);
                        let index = this.items.findIndex((item) =>
                            Object.is(item[this.deKeyField], select[this.deKeyField])
                        );
                        if (index < 0) {
                            this.items.push(params);
                        }
                    });
                }
                if (this.name && this.activeData) {
                    let value = selects.length > 0 ? JSON.stringify(this.formatValue(selects)) : '';
                    this.$emit('formitemvaluechange', { name: this.name, value: value });
                }
            });
        }
    }

    /**
     * 解析值,把srfkey和srfmajortext解析成实体属性名
     *
     * @param {any[]} value 需要转换的数组
     * @memberof AppMpicker
     */
    public parseValue(value: any[]) {
        let result = [];
        if (this.deKeyField !== 'srfkey' || this.deMajorField !== 'srfmajortext') {
            value.forEach((item: any) => {
                const params = { [this.deMajorField]: item.srfmajortext, [this.deKeyField]: item.srfkey };
                this.fillExtraValue(params, item);
                result.push(params);
            });
        } else {
            result = value;
        }
        return result;
    }

    /**
     * 格式化值，把实体属性名格式化成srfkey和srfmajortext
     *
     * @param {any[]} value 需要转换的数组
     * @memberof AppMpicker
     */
    public formatValue(value: any[]) {
        let result = [];
        if (this.deKeyField !== 'srfkey' || this.deMajorField !== 'srfmajortext') {
            value.forEach((item: any) => {
                const params = { srfmajortext: item[this.deMajorField], srfkey: item[this.deKeyField] };
                this.fillExtraValue(params, item);
                result.push(params);
            });
        } else {
            result = value;
        }
        return result;
    }

    /**
     * 填充额外参数
     *
     * @param {*} params
     * @param {*} item
     * @memberof AppMpicker
     */
    public fillExtraValue(params: any, item: any): void {
        if (isExist(this.extraFillParams)) {
            this.extraFillParams.forEach((self: any) => {
                if (isExist(item[self.key])) {
                    Object.assign(params, { [self.value]: item[self.key] });
                }
            });
        }
    }

    /**
     * 判断附加参数中是否存在指定参数
     *
     * @param {*} param
     * @memberof AppMpicker
     */
    public isExistParam(param:string){
        let result:boolean = false;
        if (isExist(this.extraFillParams)) {
            this.extraFillParams.forEach((self: any) => {
                if (isExist(self.value) && Object.is(self.value,param)) {
                    result = true;
                }
            });
        }
        return result;
    }

}
</script>
<style lang="less">
@import './app-mpicker.less';
</style>
